Automobile-radiator



G. COSTELLOE AND S. G. STOLL AUTOMOBILE RADIATOR.

APPLICATION FILED FEB. 19, [9.18.

Patented June 15,1920.

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mmv TORS Uh'ntawo $66606 dhrm Stall A TTORNEYS C. COSTELLOE AND S. G. S TOL L. AUTOMOBILE RADIATOR. v I APPLICAVTIONQFILED FEB. 19, 191B.

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WITNESSES I VE 0R3 Gan/tan, $142 6 AM w w ,4 nomvns mm June 15, 1920.

{UNITED STAT-ES:

PATENT FI E 1 oLm'roN'cosrnLLoE AND snnnne. s'roL or EL" PASO, TEXAS.

AU'roMoBILn-nAnIATon,

Specification of Letters Patent. Patented 'June 15, 1920.

Application filed February 19, 1918. Serial No. 218,162.

. To allwhom it mag concern:

Be it known that we, CLIN'roN Cos'rnrmon States, and residents of El Paso, in the 5,"eounty of El Paso and-State of Texas, have invented a new and useful Improvement in 1 Automobile-Radiators, of which 'the' followingis a specification. I

Our invention relates to improvements in automobile radiators, and it consists in the constructions, combinations and arrangements herein described and claimed.

.an automobile radiator having as one of the important features, the ability to easily remove the top and bottom tanks, so that the tubes may be readily reached for replacement and repair.

Another object of the invention is to provide a radiator as described, including novel means for simultaneously radiating the heat and adjustably checking the flow of the water.

.Other objects. and advantages will appear in the following specification, referencebeing had to the accompanying drawings, in which:

Figure 1 is a front elevation of the radiator. A v

Fig. 2 is an enlarged view of a portion of the radiator, parts being shown in section.

Fig. 3 is a detail perspective view of a portion of one of the tubes. Fig. 4 is a distorted detail section'taken substantially on the line 4-4 of ig. 1.

Fig. 5 is a cross section on the line 55 of Fig. 4:; and, Figs. 6 and 7 are perspective views of two forms of the spiral insert. In carrying-out our invention, we provide a radiator having substantially similarly formed castings 1 and 2 at the top and bottom. These castings are rectangular solid plates with a plurality of frusto-conical recesses 2 which merge into bores 2 but are so arranged as to provide holders 2 at the junctions. Therecesses receive the ends of the radiator tubes 3 as presently appears be- A tank 4 is secured on the top casting 1 by means of the bolts 5, with an interposed gasket 6 for making the joint water-tight. The tank 4 has the usual filling inlet 7 closed by a screw cap 8. A tank 9 is similarly secured to the bottom casting 2 by which is'continuous with the bores 2 .of the radiator.

- means of similar bolts 5 and an interposed gasket,- also to render the joint water-tight. and SHERM G. S'roLL, citizens of the United Formed on the extremities of the radiator tubes 3 are conical ferrules 10. These fer.- rules fit in the frusto-conical recesses just mentioned, and by abutting the shoulders 2 have a solid foundation and at the same time provide an uninterrupted water passage The joints at the meeting places of the tubes and bores is so tight as'to be almost impercepti-- ble and so mud cannot collect at the place of connection.

Bridge members 11 and 12 at the respective sides of the radiator, hold the top and 70. bottom castings together and infirm enga ement with the conical ferrules of the radlator tubes. These bridge members are secured to the castings by somewhat larger bolts 13, as clearly indicated in the drawings. By removing these bolts the castings may be removed, so that access to theradiator tube's'may be had. I The shape of each of the bridge members is shown in Fig. 5. It will be observed that they are formed like channels, which partly. embrace the radiator tubes at the extremities Each bridge member includes inward extensions 14, upon which the flanges 15 are formed. The-bolts 13 just dei scribed pass through these flanges-into the castings securing the part'in position, as indicated in Fig.-

Retarding spirals 16 are inserted in each of the radiator tubes 3, as shownin Fig. 4, to retard the flow of the water. The spirals may be made with a greater or lesser number of twists as illustrated in Figs. 6 and 7, to obtain a corresponding degree of retardation of the flow of the water. Obviously when the form of the spiral illustrated in Fig. 6 is used wherein there. are a greater number of twists the water will be retarded more markedly than when the form shown in Fig. 7 is used.

This feature of the 'adjustability of the rate of the flow of water as it were, constitutes an important advantage where the radiator is used in widely varying climates.

When the radiator is employed in hot cliclimates, the water may be permitted to pass through the tubes more quickly, and in this instance the spiral with the lesser number of twists in F ig. 7 is. used.

Heat is radiated from the radiator tubes by means of a fluted spiral flange 17 on ".""'the outside of each of the tubes. This flange place by any other suitable means.

the tube and external flange, thus directly and its manner of application to one of the tubes is partly illustrated in Fig. 3. The flange is soldered on or may be secureId in t is not necessary to flute the flange, since obvi ously it may have a smooth surface, but it is thought that by fluting the flange, the radiating surface. is materially increased. It will be observed that the retarding spiral 16 which is preferably made of metal, and occupies each of the tubes 3, forms a direct connection betweenthe hot water in the 'center of the tube-and themetallic surfaces of conducting-the heat to the place where it is radiated and disseminatejd into the surrounding air.

While the construction of the radiator is l thought to be fully understood from the foregoing description a brief review of the operation is thought to be of advantage.

First of all, one of the'important features consists of the adjustability of the rateof flow' ofwater through the tubes, to suit Y varying climatic conditions. When -the ra- "diat'or "is used in a particularly cold region,

it' is notjnecessary to retard the flow of water to any great extent,tsince under such conditions, the heat radiates rapidly enough with the use of the retarding spiral with the gradual twists, illustrated in Fig. .7

.When the radiator is used in warmer climates .where it is necessary to obtain as long an exposure of the water to the cooling.

mediumQthe retarding spiral with the many twists illustrated in Fig. 6 is employed. As

;poi iited .out above, the metallic retarding contact. with the walls of, the tubes, coactdirectly with the external fspiral flanges 17 in obtaining the most rapidand effective'raspirals inside. of the radiator tubes and in diation of the heat. Y I It is thought that theffeat'ure of ready access to the tubes for repair. is fully u'nder- -'castin with anges and packing means between the stood. 'The side bridge members 11 and 12 are the principal elements bywhich the parts are held together. Ordinarily it is necessary to simply remove the upper set of bolts 13 to obtain access to the tubes. On removing the nuts the upper tank together with the top casting 1, may be lifted off when the tubes are free to be inspected entirely correct it may be altered to such an extent that the conical ferrule'will adapt itself to the conical recess sible advantage.

While the construction and arrangement of the radiatoris that of a generally preferred form, obviously modifications and changes may be made without departing from the spirit of the invention or the scope of the claim.

We claim v v An automobile radiator, comprising solid top and bottom castings each with frustoconical recesses merging into bores with shoulders at thejunctions; radiator tubes with end frusto-conical ferrules fitting the bores and abutting the shoulders for tight joints and the provision of smooth, continuous water passages between the tubes and bores, top and bottom water tanks castings and the tanks, and means holding the castings, tanks and tubes together including end-bridges with flanges and bolts securing the solid castings to, the bridges and the tanks.

CLINTON cosTELLoE. s E M G. STOLL.

Witnessesz' HELEN C. MCNAMARA,

Enpm MURPHY.

to the best pos-- 

